every day i see a guy at my work he is always with some of his friends and when he see me he said "hi" always at a moment i was a lil mad because all he said was hi since i kinda like him now but im too shy to make the first move well i stopped responding to his "hi" and then he stop saying hi, two days ago i smiled at him and he smiled back and said hi again today he gave me the biggest smile ever but i wonder if hes married or in a relationship hes never alone so icant ask him im too shy way too shy so i wonder does that mean that he likes me? should i do something if yes what should i do? and why he cant talk to me why he always only say hi i dont want to come when hes around his boys so they think its obvious that i like him any advice please? btw im 27 im no teen LOL but im shy